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Which of the following phyla have diploblastic organisms?

What is transmission of diseases?

The fibrous root system is mostly found in

Ernest Chain and Howard Florey’s contribution was

Hepatitis B is transmitted through

What are the raw materials for biogas production?

How do biotic and abiotic factors affect crop production? [3 MARKS]

Anwer the following question: [5 MARKS]
1. Name the vessel which carries blood to the heart.
2. Name the vessel which carries blood away from the heart.
3. Name the blood vessel that brings oxygenated blood to the human heart.
4. Which chamber of the human heart receives deoxygenated blood?
5. Describe how deoxygenated blood from this chamber is sent to all parts of the body.

Q66. Consider the following statements.

1. It is also called as grape cultivation and is a specialty of the Mediterranean region.

2. The grapevine prefers the temperate climate in which it evolved, with warm, dry summers and mild winters.

Which among the following statement(s) is/are correct about Viticulture?

Is rain water harvesting is a sustainable development?

Question 58
In brief state what happens when

(a) Dry apricots are left for sometime in pure water and later transferred to sugar solution?

(b) A Red Blood Cell is kept in concentrated saline solution?

(c) The Plasma-membrane of a cell breaks down?

(d) Rheo leaves are boiled in water first and then a drop of sugar syrup is put on it?

(e) Golgi apparatus is removed from the cell?

Which among following pigments is essential for the sustenance of almost all life on earth?

What is common name of nematoda.

Q1. Provide the correct answer:
1. Ribosomes occur freely in the cytoplasm as well as attached to:
2. The organelle meant for synthesis of ATP is:
3. A cell looses water when placed in:
4. The organelle that has its own DNA and ribosomes is:
5. The organelle present in plant cell but not in animal cell is:

Which of the following is/are functions of lymph?

what is genetic manipulation ? how is it useful in agricultural practises explain in easy words.

___ is the structure which helps in the storage of urine.

What are the reasons for crop burning?

She promised to help me if I __________ the answer myself.

The ward was full ________ children infected _________ TB.

Which of the following class of animals have hair on their body?

Question 37
Define
(i) Vermicompost
(ii) Green manure
(iii) Bio fertilizer

Breathing is an important activity of the respiratory system.

The process of breathing involves

Question 35 (d)
Write true (T) or false (F)
(d) Anabaena belongs to the kingdom Monera.

Identify the type of seed germination

Which of these structure(s) help amoeba to capture food?

The above diagram represents a __, the basic unit of nervous tissue.

What is the percentage of carbon dioxide present in plasma water, carbaminohaemoglobin and bicarbonate?

Which of the following is an example of movement in non-living things?

With reference to a normal human being, which of the following statement(s) is/are incorrect?

List one function for each of following: osteoblast, chondroblast, goblet cell, neuron, muscle cell.

Explain the differences between internal and external fertilization.
[2 MARKS]

The cell organelle that helps in respiration of the cell is:
(a) Mitochondria
(b) Lysosome
(c) Ribosome
(d) Centrosome

What are the end-products of the digestion of : starch, proteins and fats respectively ?

What are nonchordates?

Question 40
Match the following A and B
$\begin{array}{cc}\text{A}& \text{B}\\ \text{(a) Smooth endoplasmic reticulum}& \text{(i) Amoeba}\\ \text{(b) Lysosome}& \text{(ii) Nucleus}\\ \text{(c) Nucleoid}& \text{(iii) Bacteria}\\ \text{(d) Food vacuoles}& \text{(iv) Detoxification}\\ \text{(e) Chromatin material and nucleolus}& \text{(v) Suicidal bag}\end{array}$

Name the following :

(a) seed borne disease ;

(b) air borne disease.

Q35. Food security involves four dimensions which include the following:

1. Stability of food supply without seasonal fluctuations or shortages.

2. Accessibility to food or affordability.

3. Utilization, quality and safety of food.

4. Adequacy of food supply or availability.

Select the correct code:

A student had collected some plant samples From a pond during the field visit under a microscope he/she observed that they do not have a well_differentiated body design,To which group of plantae they belong to?

What is the unit of measurement of cells

how does cattle feed effect milk yield

What is the scientific name of an organism that has the following classification?

Kingdom - Animalia
Phylum - Chordata
Class - Mammalia
Order - Carnivora
Family - Felidae
Genus - Felis
Species - catus

What is (a) The normal body temperature of cow?

(b) The normal body temperature of buffalo ?

How does chemical nature of the soil change due to continued use of chemical fertilizers ?